Results 21 to 30 of about 1,376 (227)

Evolution and Environment of Early-Type Galaxies [PDF]

open access: yesThe Astronomical Journal, 2006
We study the photometric and spectral properties of 39320 early-type galaxies within the SDSS, as a function of both local environment and redshift. The distance to the nearest cluster of galaxies and the distance to the 10th nearest luminous neighbor were used to define two extremes in environment.
Bernardi, M.   +4 more
openaire   +4 more sources

LINE STRENGTHS OF EARLY-TYPE GALAXIES [PDF]

open access: yesThe Astronomical Journal, 2008
88 pages, 24 figures, to be published in AJ, for further information see http://staff.on.br ...
Ogando, Ricardo L. C.   +3 more
openaire   +2 more sources

Mergers of Luminous Early-Type Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
Galaxy mergers play an important role in many astrophysical processes, such as growth of massive galaxies, triggering AGN, formation of supermassive black hole (SMBH) binaries, and gravitational wave (GW) radiation. Merger rate is one of key quantities for these studies.
Wen, Z. L., Han, J. L., Liu, F. S.
openaire   +2 more sources

SPIRE Spectroscopy of Early-type Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract We present Spectral and Photometric Imaging Receiver (SPIRE) spectroscopy for nine early-type galaxies (ETGs) representing the most CO-rich and far-infrared (FIR) bright galaxies of the volume-limited Atlas3D sample. Our data include detections of mid- to high-J CO transitions (J = 4–3 to J = 13–12) and the [C i] (1–0) and (2–1)
Ryen Carl Lapham, Lisa M. Young
openaire   +2 more sources

Investigation of the Fundamental Plane Relationship For the Evolution of the Elliptical and Lenticular Galaxies [PDF]

open access: yesمجلة التربية والعلم
The Fundamental Plane relates the effective radius and surface brightness of an early-type galaxy to its velocity dispersion. It is important in understanding galaxy formation and evolution processes. The present work aims to investigate this relation as
Khalid Mohammed
doaj   +1 more source

The SAMI Galaxy Survey: kinematics of dusty early-type galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Recently, large samples of visually classified early-type galaxies (ETGs) containing dust have been identified using space-based infrared observations with the Herschel Space Telescope. The presence of large quantities of dust in massive ETGs is peculiar as X-ray halos of these galaxies are expected to destroy dust in 10 Myr (or less). This has sparked
Bassett, R.   +21 more
openaire   +7 more sources

Chandra Early-type Galaxy Atlas [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2018
AbstractThe hot ISM in early-type galaxies (ETGs) plays a crucial role in understanding their formation and evolution. The structural features of the hot gas identified by Chandra observations point to key evolutionary mechanisms, (e.g., kim12).
Dong-Woo Kim   +13 more
openaire   +3 more sources

CORES AND THE KINEMATICS OF EARLY-TYPE GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2012
24 pages, 5 figures, accepted for publication in The Astrophysical ...
openaire   +2 more sources

THE INITIAL MASS FUNCTION OF EARLY-TYPE GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2010
We determine an absolute calibration of the initial mass function (IMF) of early-type galaxies, by studying a sample of 56 gravitational lenses identified by the SLACS Survey. Under the assumption of standard Navarro, Frenk & White dark matter halos, a combination of lensing, dynamical, and stellar population synthesis models is used to disentangle
Treu, Tommaso   +5 more
openaire   +3 more sources

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

open access: yesThe Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić   +3 more
doaj   +1 more source

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